Shore-adjusting tool



April 29, 1930. G, B, osco 1,756,173

SHORE ADJUSTING TOOL Filed March 12, 1928 and operation so that it maybe used by even' Y 12 which forms a shelf for engaging" the upper Patented AP 1 e GEORGE B. isosco, or CHICAGO, ILLINOIS sHonE-ADJUsTI G'Tooni Application filed March 12,1923. Serial 1%. 260,822.

The main objects of this invention are to provide an improved tool for accurately and quickly adjustingthe two struts of a shore; to provide improved means for rigidly'securing the tool toon'e of the struts; to provide a shore adjusting tool which maybe readily attached to and removed from the shore so that one such tool may serve a large "number of shores; and to provide a device of this kind which is simple'in its application unskilled labor.

Anillustrative embodiment of this invention is shown in the accompanying drawing, wherein Figures 1 and 2 are side elevations, partly broken away, showing opposite sides of an adjustable shore to which an improved tool is applied.

Figure 3 is an enlarged perspective of the improved tool, with the wedge removed.

e 3 and 4 andarranged to form one side of the Figure 4 is an enlarged detail in section showing a part of the jack. In the specific form herein shown, the improved tool' involves the use of a fitting adapted to be supported on one of the struts of 'a shore and having arranged thereon an operating element or jack located in position to engage the other strut for adjusting the two struts longitudinally of each other.

A tool embodying this invention isadapted I for use in connection with various forms of overlapping timbers but, in the construction herein illustrated, the tool is applied to a shore comprising'telescoping struts 1 and 2.

The strut 1 may be a post of standard form.

- The strut 2 comprises'a pair of timbers 3 and 4, of different lengths,v arranged in sub: stantially parallel spaced relation on a base a 5, to which they are connected by straps 6 or other suitable means. Secured to the timbers strut 2, is a member 7 which provides a hearing plate on which the post 1 may slide when the shore is used in an inclined position;

- The opposite face of the strut 2 is provided with an unobstructed opening 8 between the timbers 3 and 4 through which the workman may insert hishand for gripping the inner end of the post 1 to obtainthe initial rough ustment of the shore. f The upper ends of the timbers 3 and 4 are rigidly secured to a clamp 9 which is some what similar to that shown in my copending application Serial No. 245,469 filed January theform shown, the clamp 9 comprises a'pair ofsidememberslO and 11 arrangedin substantially parallel spaced relation and Jconnectedtogether at one end by an angle bar extremity of-the timber 3. The'members' 10 and 11 are connected together at the opposite end thereof by end pieces 13 and 14 which engage theouter face of the bar 4. The clamp 9 may be rigidly secured to the bars 3 and 4 by bolts-15. 1 V 1 v :Formed in the side members 10 and-11 are slots 16 and 17, respectively, of substantially triangular shape to form a keyway for a' I and on which is mounted an operating element or jack 21. The member20 is preferably a metal casting" shaped for'use with rectangular timbers of standard dimensions.

PATENT OFFICE intheform shown-, the.fitting 20 comprises i a pair of spaced yokes 22 and 23 formed on a hollow guide. member 24, v and arranged to embrace the rectangular post 1.

Form'ed in the'yoke 23 are key slots 25'and 26101 receiving a wedge. 27 which is fulcrumed inythe outer corners of the slots so as to "permit the inner edge of the wedge to swing into and out of engagement with: the opposed face of the post 1. V The wedge may be fastened tojthe yoke 23 by a chain 28. v

V The guide member 24 com-prises a hollow post having a pair of oppositely arranged grooves 29.

Formed on the lower end of the post 24, is a housing 30 having an opening 31 in its lower end located in alignment with the bore of the member 24. r

The operating jack comprises a screw plunger 32' axially movable in the guidemem ber 24 and having pins 33 slidable in the grooves 29 for securing the plunger against rotation'relative to the fitting.

Mounted on the lower extremity of the plunger 32 is a bearing part 33 adapted to straddle the clamp 9 and to rest on the hearing ledges 1.9.

Threaded to theplunger 32 is a. gear 34 which is positioned between the lowerend of the guide 24 and the lower end housing 30;

Formed on the guide member 24; is abearing. 35, on which is rotatably mounted an operating crank having two handles 36. and

. 37? provided with a gear part 38 meshing with the gear 34, whereby rotation of the crank effects the desired relative axialmovei ment between the fitting. 20, and plunger 32. A screw 39 and washer: 40 secure: the crank against accidental removal fromsthe bear;-

Inopeiati-on' v an approximate rough adjustment of'the shore: is first obtained by lifting the post I with the hand. and then by means of the wedge 18 the two struts ELIGLtGIIL- porarily secured in their roughly adjusted positions. The fitting 20 is then rigidly secured to. the: post liby mean-s of the Wedge27 and the jack 21 is: operated u-ntil'thelbearing part bears firmly against the ledges 19'.

The wedge 18 of the clamp 9 is then removed 7 from its slots 16 and H so: as to permit a line adjustment of the struts. By turning the handles 36 and37, the-fitting 20-and j-acl; 21 are moved relative to each other to effect the desired final adjustment. After the final adjustment is obtained, the Wedge l 8 is again inserted to lock the struts 1 and'2 together, so as to perm-it removal of the tool for use on othershores.

I claim: a

A tool for adjusting a pair struts comprising a fitting adapted to enabrace one of the struts, means for adjustably... securing said fitting to said one strut,

a guideway on. said fitting, a screw plunger 7 in said guideway and secured against rotation relative to said fitting said' fitting being relatively movahleaxially of said plunger, a bearingtpart on said v plunger adapted to. engage the'other strut; and an operatinghandl'e mounted on" said fitting and geared to said plunger. v c

Signed at @hicagothis- 9th day crimes,

j ssenc s B; noses.

of the ofoverlapping 

